**Acknowledgements**

We are grateful for the help of Cláudio Campi de Castro (who conducted the project and IRM evaluation), Paulo Puglia Jr, Francisco Ramos Jr (who designed the study protocol), Michel Eli Frudit, Hélio Leitão, Maurício Jory, Leandro Assis Barbosa, Guilherme Abrão, Carlos Pereira Silva, Mateus Miranda, Fausto Motta Ferraz, Carlos Hagioto, Salassiê Mansur, Rodrigo Peres Ignácio, Eduardo Figueiredo (for the application of RM evaluation), and professor Gercino Monteiro Filho (for statistical analysis). The present research was supported by the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP).
